Known as the Good God, his partners were the Morrigan and Boann, and he fathered Brigit and Aonghus.

He was the god of blacksmiths and metal craft, and he made all the major weaponry for the warriors of the goddess Dana. He worked with two other gods, some say his brothers, Luchtain the carpenter and Creidhnc the bronze wright, and they were known as the Tri Dée Dána.

Lugh or Lugus

Celtic life and religious observation were tied to the farming cycle and, in a truly Irish way, it begins in winter with the observation of Samhain, around October 31 and November 1.

http://www.irishtribes.com/articles/2012-11-lost-celtic-creation-myth-in-english.html

was always carried by King Nuada of the Silver Arm, and once drawn, it would always kill.

Maeve (Medb) is an exceptionally interesting deity, and also a historical figure as the Queen of Connaught.

Lugh offered all these arts and gifts when he applied to enter the ranks of the Tuatha dé Danann at Tara, where he presented himself thus: “Here there is Lugh Lonnannsclech son of Cian son of Dian-cecht, and of Ethne daughter of Balor. Fosterson, he, of Tallan daughter of Magmor king of Spain and of Echaid the Rough, son of Duach.”

At this time, the living were thought to be very close to those in the Otherworld—spirits could warm themselves at a communal hearth, and bards could sing their way across the threshold; festivals could be a little wild. The tribe’s druids would use this time, usually at the darkest time of the night, to make contact and seek guidance from their